{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80195", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-08-25T23:14:37.730Z", "datePublished": "2026-08-25T23:19:02.395Z", "dateUpdated": "2026-08-25T23:19:02.395Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-08-25T23:19:02.395Z"}, "datePublic": "2026-08-05T00:00:00.000Z", "title": "Kimai before 2.63.0 Team Membership Removal via API", "descriptions": [{"lang": "en", "value": "Kimai before 2.63.0 contains a business logic / improper authorization vulnerability in the team update API endpoint (PATCH /api/teams/{id}), which removes all existing team members before validating the submitted replacement member list. An authenticated teamlead (or other user) with permission to edit a team can submit a malformed members payload; although Kimai returns a validation error, the existing membership rows have already been deleted. This bypasses the dedicated member-removal endpoint's protection against removing teamleaders and can leave a team with no members or teamleaders, disrupting team-based access control."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Enforcement of Behavioral Workflow", "cweId": "CWE-841", "type": "CWE"}]}], "affected": [{"vendor": "kimai", "product": "kimai", "defaultStatus": "unaffected", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "2.63.0"}, {"version": "2.63.0", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:kimai:kimai:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.63.0"}]}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 8.7, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L", "version": "3.1"}, "format": "CVSS"}], "references": [{"url": "https://github.com/kimai/kimai/security/advisories/GHSA-6rxf-4hh9-pp46", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-6rxf-4hh9-pp46)"}, {"name": "VulnCheck Advisory: Kimai before 2.63.0 Team Membership Removal via API", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/kimai-before-2.63.0-team-membership-removal-via-api"}], "credits": [{"lang": "en", "value": "mattmumford-git", "type": "reporter"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

{}

{}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.63.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "2.63.0"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "kimai", "source": "cna", "vendor": "kimai"}, "product": "kimai", "vendor": "kimai"}], "created": "2026-08-26T01:15:04.113891+00:00", "updated": "2026-08-26T01:15:04.640824+00:00", "vendors": ["kimai", "kimai$PRODUCT$kimai"]}